Home / 812,092.80-1,218,004.80-272,342.40

Finding the Fourth Proportional to 812,092.80, 1,218,004.80 and 272,342.40

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Solution

The fourth proportional to 812,092.80, 1,218,004.80 and 272,342.40 is: 408,468.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,092.80 : 1,218,004.80 = 272,342.40 : x
  2. Step 2: Convert to fraction form
    812,092.80/1,218,004.80 = 272,342.40/x
  3. Step 3: Cross multiply
    812,092.80x = 1,218,004.80 × 272,342.40
  4. Step 4: Simplify right side
    812,092.80x = 331,714,350,443.52
  5. Step 5: Solve for x
    x = 331,714,350,443.52/812,092.80
  6. Step 6: Final answer
    x = 408,468.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.